Digital tool | Number of studies | % of recruitment studies (n = 96) | % of all studies (N = 105) |
---|---|---|---|
Internet site | 51 | 53 | 49 |
Social media | 40 | 42 | 38 |
30 | 31 | 29 | |
Television or radio | 30 | 31 | 29 |
Automated screening to identify potential participants | 22 | 23 | 21 |
Internet forum | 5 | 5 | 5 |
Smartphone or tablet App | 5 | 5 | 5 |
Video | 5 | 5 | 5 |
Automated identification of trials for which people are potentially eligible | 4 | 4 | 4 |
Instant-messaging or text-messaging | 4 | 4 | 4 |
Automated telephone call | 2 | 2 | 2 |
Other computer programme | 2 | 2 | 2 |
Chatbot | 1 | 1 | 1 |
Crowd-sourcing platform | 1 | 1 | 1 |
 Virtual snowballing | 1 | 1 | 1 |
Smartphone or tablet other use | 1 | 1 | 1 |
Internet pop-up advertisements | 0 | 0 | 0 |
Digital lecture/presentation (e.g. PowerPoint) | 0 | 0 | 0 |
Others | 16 | 17 | 15 |